SE450746B - PH CONTROLLING FEED ADDITIVES - Google Patents

Description

Di-, and / or triglyceride, fatty acid and / or salt thereof, with a melting point exceeding 35 ° C, preferably exceeding 55 ° C, the coating being 10-60% by weight of the total composition.

Additional characteristics are set forth in the appended claims.

By buffering substance is meant above both sodium bicarbonate, but also sodium carbonate, disodium hydrogen phosphate, and the corresponding potassium salts. Fats used must be saturated to give the least disturbance to the digestive tract. Additional nutrients, which may be of interest to the ruminant, can of course also be incorporated into the product to the extent that this is desirable from a nutritional and distribution point of view.

By means of the present invention, larger amounts of buffering substance can be mixed into concentrates than has previously been possible.

The taste-masking material may constitute 10-60, preferably 25-40% by weight of the finished product. The amount of buffering substance will then normally be 40-90, preferably 60-75% by weight of the product. The taste-masking material suitably consists of 60-100% of mono-, di-, and / or triglycerides and / or fatty acids. Waxes and / or salts of fatty acids, especially Ca stearate, and / or emulsifiers may be present in an amount of up to 80% of the taste masking material.

It is obvious that taste-enhancing substances can be added, if desired. Such flavors may be hay flour, or the like, which also gives the desired color to the product, that is, the product should not deviate in color from what the ruminant is used to. In order to extend the product's residence time in the rumen in order to thereby guarantee full utilization of the buffering substance, kaolin or any other heavy product, for example limestone, can be embedded so that the product has a density exceeding about 1, i.e. say, a density that exceeds the density of the rumen fluid. In addition, the present invention provides that thermally unstable substances, such as sodium bicarbonate, are protected during, for example, a petting operation. Likewise, the substance is protected against decomposition in the case of peephole.

The technical effect of the present invention will be demonstrated below with reference to some otic experiments carried out with covered product according to the invention, respectively uncovered product.

Example 1. 70 wt-Z 30 wt-Z The product was warmed over after cat NaHCO 3 with stirring. Tooth NaHCO3 fatty acids (m.p. 50-70 ° C; 16-18C) were prepared by providing a small fatty acid at 5 ° C, the mantle was provided with a mantle while the heat after cooling could be observed during the preparation.

Depending on the melting point of the fatty acid used and the design of the vessel or agitator and its speed, the product received such a treatment that it became more after less decomposed. The product can also be crushed after being fed and, if necessary, sifted to the desired size. Screened product (<2 mm) has been inhaled at 20 wt-Z in a concentrate and fed at dairy cows with exceptionally good results. In one of the experiments, 2x20 milk cows were born from 3 weeks before calving to 10 weeks after calving, whereby the group that received 200 9 NaHCO 3 according to Ex. 1 above per cow and day gave an average of 1100 g more 4 Z-ig of milk per day according to pretimi- nary calculations.

Example 2. 70 wt-Z NaHCO 3 10 wt: -z fatty acids tsp. so -70 ° c) 20 fold: -x The product Ca-stearate was prepared by capping in a cat extruder. The melting point of the fatty acid is then> 58 ° C in order to obtain a good product tax. . __ .. _ ._____. 450 746 4 A dairy cow receives about 5 kg of concentrate per day for the last time before calving. After calving, the amount of concentrate shall be increased from the said 5 kg per day to 10-12 kg per day for a 14 - day period. This places great demands on the buffer capacity in the rumen and therefore in many cases about 200 g NaHCO 3 or the corresponding amount of other buffering substance must be added per day in order to maintain a suitable pH in the rumen and thus the most suitable conditions for the rumen microorganisms. . The added buffer should be active a few hours after the concentrate feed.

In laboratory tests with pure NaHCO 3 and covered NaHCO 3 (compare Table 1 below), it has been found that NaHCO 3 present in the taste-masked product reacts somewhat more slowly than pure NaHCO 3 added to a rumen liquid. Depending on the properties of the constituent taste-masking material in the rumen, such as digestibility and melting point and density, lower local pH variations in the rumen can therefore be obtained, which disturbs the rumen microorganisms less. The buffer substance thus has time to be better distributed throughout the rumen volume. Table 1.

Added Added amount of pH by substance per 100 ml of liquid liquid 1 min min Pure NaHCO3 1.4 6.1 7.1 7.1 '7.1 7.1 Taste-masked NaHCO3, 70%, + 3oz fatty acids 16 -18C 2.0 6.1 6.5 6.6 6.8 6.9 NaHCO 3, 70%, + 30% mono + diglycerides 2.0 6.3 6.4 7.1 7.2 7.2 NaHCO , 40%, + 60% monoglycerides 3.5 6.3 6.6?, 1 7.2 7.3 va. 10 15 20 25 30 450 746 5 In the literature, experiments have been described in which dairy cows have been given varying amounts of NaHCO 3. The donations have usually varied between 170 and 454 g per cow and day. In the case of buffer capacity, the following assumptions have been considered to apply. This dairy cow was given 210 g of NaHCO 3 per day on 2 occasions, which meant that the rumen was fed with 1.5 g of NaHCO 3 per liter of rumen fluid and occasion. in addition to the amount naturally present in saliva. The buffer capacity with this dosage has been tested in vitro with the following results according to Table 2 below.

Table 2.

Amount Added StarthP pH after Amount (mL) of added liquid NaHCO 3 1 min 0.1 N HCl to make the pH ml g 6.5 6.0 5.5 5.0 100 - 6.95 - 11.0 29 .0 46.5 64.5 *** 100 0.15 6.95 7.05 19.0 42.5 62.0 s5.5 *** 100 0.151) 6.95 7.05 20.5 37, 55.0 72.5 * 100 0.152) 7.05 17.5 37.5 57.5 77.0 ** 6.95 1) 300% fat 2) 30 Z fat according to Example 1 according to Example 2 after 60 min required 83.5 ml HCL ** after 60 min required 79.0 ml HCL *** after 60 min same pH _ ._... q ._._.......- f -... v -_._ .. V.. ._. 450 746 A 50% composition with different melting points 6 NaHCO 3 and 50% cured triglycerides was tested in vivo on fistulated cow, the product being trapped in the heat of a large mesh nylon bag. Feeding result was obtained. 5 TABLE 3.

Amount Melting point for Residual amount of material NaHCO 3 used trigly- after 6 hours in% by weight 10 z ° c 50 37 0.09 0.50 50 50 44.17 51.47 - ____...-._ ... .._.-..._._ »ÉÅI

Claims (4)

'i 450 746 PATENTKRAV. 10 15 20 25 PH-regulating feed additive for ruminants containing a buffering substance, characterized in that the buffering substance consists of NaHCO 3, Na 2 CO 3, and / or Na 2 HPO 4 substance is coated with a mono-, di-, and / or trigly and / or the corresponding potassium salts, which buffering ceride, fatty acid and / or salt thereof with a melting point exceeding 35 ° C, preferably exceeding 55 ° C, the coating constituting 10-60% by weight of Z of the total composition. Feed additive according to Claim 1, characterized in that the coating comprises 25-40% by weight Feed additive according to claim 1, characterized in that the feed additive contains flavorings. Feed additive according to claim 1, characterized in that the feed additive contains color additives, such as hay flour and peat.